Supplementary listings -
These listings are created by Google
and perhaps by other search engines and contain pages that the search engine believes to be duplicate content for a
keyword or a site. It seems that this is content that is believed to have been wholly copied from another Website.
Examples may be newspaper articles that are copied to several blogs and forums. At one time, Google would only
display these results if you clicked on a link for displaying omitted results. Evidently the current (October 2008)
policy is to display all the pages, regardless of whether or not they have duplicate content. The top positioned
page for an article is not always the real source. A page with good optimization techniques at a large website will
often beat out the original page from which it was copied.
In Google, entering [site:seo.yu-hu.com] will show all the pages that Google has indexed in both the main and
supplementary database. Entering [site:seo.yu-hu.com/*] will show only the main database listings.
Ami Isseroff
October 2, 2008
Note - Definitions of Search Engine
Optimization terms are based on inferences from common usage and definitions given by other sources. Conclusions about
search engine behavior are based on understanding of the behavior of the most popular search engines. Both are subject
to error or may change. Search engine company management may define or use a term or set or change any policy in any way
they see fit, and may make these definitions and specifications public or not. These decisions and definitions are
beyond our control. Notice: Copyright
All materials are copyright 2008 by Ami Isseroff. All rights reserved. These pages may not be reproduced in any
form in electronic or printed media without express written permission from the author.
SEO Glossary
